Forester,
I have a Dyna glo model RMC-95-C2 that has worked great for 3 years. The best advice I can give you is to use the previously mentioned additive. It only takes an ounce or so per gallon, but it keeps your wick from turning crusty and hard. My neighbor replaced his wick 3 times in 1 year and I have yet to replace mine. He didn't want to pay the few bucks for the additive. It also decreases the kerosene smell. Another tip: don't light it or shut it down inside the home; not because of the fire danger, but because of the soot and smell produced during these two times (especially shut down).
Good luck, George